Connecting to a DB - PART 2: Kubernetes

guides/get-started-microservices-on-kubernetes/simple-microservice-database-part1.adoc

@@ -8,8 +8,7 @@ include::./_includes/_titles.adoc[]
 In this guide, we will extend the example created in link:simple-microservice-part1[{simple-microservice-part1}] and add Database connectivity;
 
 include::{includedir}/_prerequisites.adoc[]
-
-* link:simple-microservice-part1[{simple-microservice-part1}]
+* You have completed link:simple-microservice-part1[{simple-microservice-part1}]
 
 include::_includes/_constants.adoc[]
 

guides/get-started-microservices-on-kubernetes/simple-microservice-database-part2.adoc

@@ -1,6 +1,113 @@
 = {simple-microservice-database-part2}
+:summary: Java Microservice using WildFly
+:includedir: ../_includes
+include::{includedir}/_attributes.adoc[]
 include::./_includes/_titles.adoc[]
+:prerequisites-time: 10
 
+In this guide, you will learn how-to run the Docker Image we built in link:simple-microservice-database-part1[{simple-microservice-database-part1}] on Kubernetes.
+
+include::{includedir}/_prerequisites.adoc[]
+* You have completed link:simple-microservice-database-part1[{simple-microservice-database-part1}]
+
+include::_includes/_constants.adoc[]
+
+== PostgreSQL
+
+We basically will repeat everything we did in link:{simple-microservice-part2}[{simple-microservice-part2}] but, before, we will deploy PostgreSQL on Kubernetes;
+
+=== PostgreSQL configmap
+
+Create e fine named `postgres-configmap.yaml` with the following content:
+
+.postgres-configmap.yaml
+[source,yaml,subs="normal"]
+----
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-secret
+  labels:
+    app: postgres
+data:
+  POSTGRES_DB: {postgre-sql-database}
+  POSTGRES_USER: {postgre-sql-user}
+  POSTGRES_PASSWORD: {postgre-sql-password}
+----
+
+apply the ConfigMap configuration to the Kubernetes:
+
+[source,bash,subs="normal"]
+----
+kubectl apply -f postgres-configmap.yaml
+----
+
+=== PostgreSQL deployment
+
+Create e fine named `postgres-deployment.yaml` with the following content:
+
+.postgres-deployment.yaml
+[source,yaml,subs="normal"]
+----
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: postgres
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: postgres
+  template:
+    metadata:
+      labels:
+        app: postgres
+    spec:
+      containers:
+        - name: postgres
+          image: 'postgres:latest'
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 5432
+          envFrom:
+            - configMapRef:
+                name: postgres-secret
+----
+
+apply the ConfigMap configuration to the Kubernetes:
+
+[source,bash,subs="normal"]
+----
+kubectl apply -f postgres-deployment.yaml
+----
+
+=== PostgreSQL service
+
+Create e fine named `postgres-service.yaml` with the following content:
+
+.postgres-service.yaml
+[source,yaml,subs="normal"]
+----
+apiVersion: v1
+kind: Service
+metadata:
+  name: postgres
+  labels:
+    app: postgres
+spec:
+  type: NodePort
+  ports:
+    - port: 5432
+  selector:
+    app: postgres
+----
+
+apply the ConfigMap configuration to the Kubernetes:
+
+[source,bash,subs="normal"]
+----
+kubectl apply -f postgres-service.yaml
+----
 
 Back to Guides
 

guides/get-started-microservices-on-kubernetes/simple-microservice-part2.adoc

@@ -10,7 +10,7 @@ include::./_includes/_titles.adoc[]
 In this guide, you will learn how-to run the Docker Image we built in link:simple-microservice-part1[{simple-microservice-part1}] on Kubernetes.
 
 include::{includedir}/_prerequisites.adoc[]
-* You have completed link:simple-microservice-part1.adoc[Create a JAX-RS application using Bootable Jar - part one: bare metal]
+* You have completed link:simple-microservice-part1[{simple-microservice-part1}]
 
 include::_includes/_constants.adoc[]